The combination of bitterly cold temperatures and strong winds will create dangerous wind chills Thursday night through much of Friday.
A Wind Chill WARNING has been issued for Whiteside County until noon Friday.
A Wind Chill ADVISORY has been issued for Lee County until noon Friday.
Temperatures falling into the teens below zero will combine with gusty west winds to drive wind chill values to near -30 by Friday morning.
Frostbite is possible in less than 15 minutes in these conditions. If you must be outside, make sure and dress in layers, leaving very little exposed skin.